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Subject: Re: [PATCH] writeback: prevent bandwidth calculation overflow
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
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Date: Thu, 18 Nov 2010 17:02:01 +0100
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To: Wu Fengguang <fengguang.wu@intel.com>
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On Thu, 2010-11-18 at 23:44 +0800, Wu Fengguang wrote:
> +               pause =3D HZ * pages_dirtied / (bw + 1);

Shouldn't that be using something like div64_u64 ?

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